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Silver metaphosphate glass wires inside silica fibers—a new approach for hybrid optical fibers

Phosphate glasses represent promising candidates for next generation photonic devices due to their unique characteristics, such as vastly tunable optical properties, and high rare earth solubility. Here...

50.4% slope efficiency thulium-doped large-mode-area fiber laser fabricated by powder technology

We report on a triple clad large mode area Tm-doped fiber laser with 18 μm core diameter manufactured by an alternative manufacturing process named Repusil. The fiber characterization in a laser configuration...

Influence of intermediate layers on the surface condition of laser crystallized silicon thin films and solar cell performance

The intermediate layer (IL) between glass substrate and silicon plays a significant role in the optimization of multicrystalline liquid phase crystallized silicon thin film solar cells on glass. This study...

All-in-one: a versatile gas sensor based on fiber enhanced Raman spectroscopy for monitoring postharvest fruit conservation and ripening

In today’s fruit conservation rooms the ripening of harvested fruit is delayed by precise management of the interior oxygen (O2) and carbon dioxide (CO2) levels. Ethylene (C2H4), a natural plant hormone,...

Complete dispersion analysis of single crystal yttrium orthosilicate

A single crystal of yttrium orthosilicate was investigated by FFIR-spectroscopy in the spectral region of 150-2000 cm(-1) to properly characterize this laser medium. The five reflection spectra of the...

Characterization of different substrates for Raman spectroscopic imaging of eukaryotic cells

For Raman spectroscopic analyses of the cells and other biological samples, the choice of the right substrate material is very im-portant to avoid loss of information in characteristic spectral features...

Thin-Film-Based Ultralow Noise SQUID Magnetometer

We report on the development of an ultralow noise thin-film based SQUID magnetometer. A niobium thin-film pickup coil is connected to the input coil of a SQUID current sensor. The low capacitance of the...

The combination of optical coherence tomography and Raman spectroscopy for tissue characterization

The visualization as well as characterization of diseased tissue are of vital diagnostic interest for an early diagnosis to increase patients’ survival rate. In this study we introduce an imaging device...

Biomineralization of Mn oxides by Mn(II)-oxidizing bacilli from a contaminated soil

Fast label-free detection of Legionella spp. in biofilms by applying immunomagnetic beads and Raman spectroscopy

Legionellae colonize biofilms, can form a biofilm by itself and multiply intracellularly within the protozoa commonly found in water distribution systems. Approximately half of the known species are pathogenic...